The national broadband network is the giant project throughout Australia where there is cable being laid all around Australia. This could be an excellent opportunity for you to capitalize on if you have your white card. This card allows you to work anywhere in Australia, so yes, you could work on the NBN.
If you would like some more information on the NBN, then you should check out this news report on the national broadband network. This kind of work is constant and you can make a good living out of it. But if you do not have your construction induction card, then you could not work on the site, so get online and get started today!